<template>
  <div class="transfer" :class="[!isPC ? 'transfer-h5' : '', isWeChat ? 'transfer-h5-wechat' : '']">
    <header class="transfer-header transfer-h5-header" v-if="!isPC">
      <div v-if="!props.isHiddenBackIcon" @click="cancel">
        <Icon class="icon" :file="backIcon" :width="'18px'" :height="'18px'" />
      </div>
      <span class="title">{{ transferTitle }}</span>
      <span class="space"></span>
    </header>
    <main class="main">
      <div class="left">
        <header class="transfer-header">
          <!-- PC 端触发 @keyup.enter -->
          <input
            v-if="isPC && isTransferSearch"
            type="text"
            :value="searchValue"
            @keyup.enter="handleInput"
            :placeholder="TUITranslateService.t('component.请输入userID')"
            enterkeyhint="search"
            :class="[isUniFrameWork ? 'left-uniapp-input' : '']"
          />
          <!-- 非 PC 端触发 blur -->
          <input
            v-if="!isPC && isTransferSearch"
            type="text"
            @blur="handleInput"
            @confirm="handleInput"
            :placeholder="TUITranslateService.t('component.请输入userID')"
            enterkeyhint="search"
            :value="searchValue"
            :class="[isUniFrameWork ? 'left-uniapp-input' : '']"
          />
        </header>
        <main class="transfer-left-main">
          <ul class="transfer-list">
            <li
              class="transfer-list-item"
              @click="selectedAll"
              v-if="optional.length > 1 && !isRadio"
            >
              <Icon
                v-if="transferSelectedList.length === optional.length"
                :file="selectedIcon"
                :width="'18px'"
                :height="'18px'"
              ></Icon>
              <i v-else class="icon-unselected"></i>
              <span class="select-all">{{ TUITranslateService.t('component.全选') }}</span>
            </li>
            <li
              class="transfer-list-item"
              v-for="(item, index) in transferList"
              :key="item.userID"
              @click="selected(item)"
            >
              <Icon
                v-if="transferSelectedList.indexOf(item) > -1"
                :file="selectedIcon"
                :class="[item.isDisabled && 'disabled']"
                :width="'18px'"
                :height="'18px'"
              ></Icon>
              <i v-else :class="[item.isDisabled && 'disabled', 'icon-unselected']"></i>
              <template v-if="!isTransferCustomItem">
                <img
                  class="avatar"
                  :src="
                    item.avatar ||
                    'https://web.sdk.qcloud.com/component/TUIKit/assets/avatar_21.png'
                  "
                  onerror="this.onerror=null;this.src='https://web.sdk.qcloud.com/component/TUIKit/assets/avatar_21.png'"
                />
                <span class="name">{{ item.nick || item.userID }}</span>
                <span v-if="item.isDisabled"
                  >（{{ TUITranslateService.t('component.已在群中') }}）</span
                >
              </template>
              <template v-else>
                <slot name="left" :data="item" />
              </template>
            </li>
            <li
              class="transfer-list-item more"
              @click="getMore"
              v-if="transferTotal > transferList.length"
            >
              {{ TUITranslateService.t('component.查看更多') }}
            </li>
          </ul>
        </main>
      </div>
      <div class="right">
        <header class="transfer-header" v-if="isPC">{{ transferTitle }}</header>
        <ul class="transfer-list" v-if="resultShow">
          <p class="transfer-text" v-if="transferSelectedList.length > 0 && isPC">
            {{ TUITranslateService.t('component.已选中') }}{{ transferSelectedList.length
            }}{{ TUITranslateService.t('component.人') }}
          </p>
          <li
            class="transfer-list-item space-between"
            v-for="(item, index) in transferSelectedList"
            :key="index"
          >
            <aside class="transfer-list-item-content">
              <template v-if="!isTransferCustomItem">
                <img
                  class="avatar"
                  :src="
                    item.avatar ||
                    'https://web.sdk.qcloud.com/component/TUIKit/assets/avatar_21.png'
                  "
                  onerror="this.onerror=null;this.src='https://web.sdk.qcloud.com/component/TUIKit/assets/avatar_21.png'"
                />
                <span v-if="isPC" class="name">{{ item.nick || item.userID }}</span>
              </template>
              <template v-else>
                <slot name="right" :data="item" />
              </template>
            </aside>
            <span @click="selected(item)" v-if="isPC">
              <Icon :file="cancelIcon" :width="'18px'" :height="'18px'"></Icon>
            </span>
          </li>
        </ul>
        <footer class="transfer-right-footer">
          <button class="btn btn-cancel" @click="cancel">
            {{ TUITranslateService.t('component.取消') }}
          </button>
          <button v-if="transferSelectedList.length > 0" class="btn" @click="submit">
            {{ TUITranslateService.t('component.完成') }}
          </button>
          <button v-else class="btn btn-no" @click="submit">
            {{ TUITranslateService.t('component.完成') }}
          </button>
        </footer>
      </div>
    </main>
  </div>
</template>

<script lang="ts" setup>
import { ref, watchEffect, computed } from '../../../adapter-vue'
import { TUITranslateService } from '@tencentcloud/chat-uikit-engine'
import { ITransferListItem } from '../../../interface'
import Icon from '../Icon.vue'
import selectedIcon from '../../../assets/icon/selected.svg'
import backIcon from '../../../assets/icon/back.svg'
import cancelIcon from '../../../assets/icon/cancel.svg'
import { isPC, isWeChat, isUniFrameWork } from '../../../utils/env'

const props = defineProps({
  list: {
    type: Array,
    default: () => []
  },
  selectedList: {
    type: Array,
    default: () => []
  },
  isSearch: {
    type: Boolean,
    default: true
  },
  isRadio: {
    type: Boolean,
    default: false
  },
  isCustomItem: {
    type: Boolean,
    default: false
  },
  title: {
    type: String,
    default: ''
  },
  type: {
    type: String,
    default: ''
  },
  resultShow: {
    type: Boolean,
    default: true
  },
  total: {
    type: Number,
    default: 0
  },
  isHiddenBackIcon: {
    type: Boolean,
    default: false
  }
})

const type = ref('')
const transferList = ref<Array<ITransferListItem>>([])
const transferTotal = ref<Number>(0)
const transferSelectedList = ref<Array<ITransferListItem>>([])
const isTransferSearch = ref(true)
const isTransferCustomItem = ref(false)
const transferTitle = ref('')
const searchValue = ref('')

watchEffect(() => {
  if (props.isCustomItem) {
    for (let index = 0; index < props.list.length; index++) {
      if ((props.list[index] as any).conversationID.indexOf('@TIM#SYSTEM') > -1) {
        props.list.splice(index, 1)
      }
      transferList.value = props.list as Array<ITransferListItem>
    }
  } else {
    transferList.value = props.list as Array<ITransferListItem>
  }
  transferTotal.value = props.total ? props.total : props.list.length
  transferSelectedList.value = (
    props.selectedList && props.selectedList.length > 0
      ? props.selectedList
      : transferSelectedList.value
  ) as any
  isTransferSearch.value = props.isSearch
  isTransferCustomItem.value = props.isCustomItem
  transferTitle.value = props.title
  type.value = props.type
})

const emit = defineEmits(['search', 'submit', 'cancel', 'getMore'])

// 可选项
const optional = computed(() => transferList.value.filter((item: any) => !item.isDisabled))

const handleInput = (e: any) => {
  searchValue.value = e.target.value
  emit('search', e.target.value)
}
const selected = (item: any) => {
  if (item.isDisabled) {
    return
  }
  let list: Array<ITransferListItem> = transferSelectedList.value
  const index: number = list.indexOf(item)
  if (index > -1) {
    return transferSelectedList.value.splice(index, 1)
  }
  if (props.isRadio) {
    list = []
  }
  list.push(item)
  transferSelectedList.value = list
}

const selectedAll = () => {
  if (transferSelectedList.value.length === optional.value.length) {
    transferSelectedList.value = []
  } else {
    transferSelectedList.value = [...optional.value]
  }
}

const submit = () => {
  emit('submit', transferSelectedList.value)
  // 针对小程序做的数据清空
  searchValue.value = ''
}

const cancel = () => {
  emit('cancel')
  // 针对小程序做的数据清空
  searchValue.value = ''
}

const getMore = () => {
  emit('getMore')
}
</script>

<style lang="scss" scoped src="./style/transfer.scss"></style>
